CA2243864A1 - Procede de fabrication de reseaux a longs pas dans les fibres optiques - Google Patents

Procede de fabrication de reseaux a longs pas dans les fibres optiques

Info

Publication number
CA2243864A1
CA2243864A1 CA002243864A CA2243864A CA2243864A1 CA 2243864 A1 CA2243864 A1 CA 2243864A1 CA 002243864 A CA002243864 A CA 002243864A CA 2243864 A CA2243864 A CA 2243864A CA 2243864 A1 CA2243864 A1 CA 2243864A1
Authority
CA
Canada
Prior art keywords
manufacture
optical fibre
long pitch
networks
pitch networks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002243864A
Other languages
English (en)
Other versions
CA2243864C (fr
Inventor
Loic Rivoallan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orange SA
Original Assignee
France Telecom SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by France Telecom SA filed Critical France Telecom SA
Publication of CA2243864A1 publication Critical patent/CA2243864A1/fr
Application granted granted Critical
Publication of CA2243864C publication Critical patent/CA2243864C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/021—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02066—Gratings having a surface relief structure, e.g. repetitive variation in diameter of core or cladding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/02085—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the grating profile, e.g. chirped, apodised, tilted, helical
    • G02B6/02095—Long period gratings, i.e. transmission gratings coupling light between core and cladding modes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03661—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 4 layers only
    • G02B6/03666—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 4 layers only arranged - + - +

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

L'invention se rapporte à un réseau à longues périodes dans une fibre optique. Ce réseau est destiné à permettre la réalisation d'un filtre a couplage de modes. Il est particulièrement caractérisé en ce qu'il présente des variations périodiques du diamètre de la fibre optique et une symétrie de révolution.
CA002243864A 1997-07-24 1998-07-22 Procede de fabrication de reseaux a longs pas dans les fibres optiques Expired - Fee Related CA2243864C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709437 1997-07-24
FR9709437A FR2766584B1 (fr) 1997-07-24 1997-07-24 Reseau a longues periodes dans une fibre optique et procede de fabrication

Publications (2)

Publication Number Publication Date
CA2243864A1 true CA2243864A1 (fr) 1999-01-24
CA2243864C CA2243864C (fr) 2004-10-12

Family

ID=9509594

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002243864A Expired - Fee Related CA2243864C (fr) 1997-07-24 1998-07-22 Procede de fabrication de reseaux a longs pas dans les fibres optiques

Country Status (3)

Country Link
US (1) US6130974A (fr)
CA (1) CA2243864C (fr)
FR (1) FR2766584B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100274075B1 (ko) * 1998-05-09 2001-01-15 서원석 광섬유 격자 및 이를 이용한 광섬유 소자
US6832023B1 (en) 2000-05-19 2004-12-14 Georgia Tech Research Corporation Optical fiber gratings with azimuthal refractive index perturbation, method of fabrication, and devices for tuning, attenuating, switching, and modulating optical signals
US7352967B1 (en) * 2000-06-21 2008-04-01 Mitsubishi Denki Kabushiki Kaisha Data transmission system
US6832025B2 (en) * 2001-07-02 2004-12-14 Jds Uniphase Corporation Fiber bragg grating fabrication method
US7177510B2 (en) * 2004-08-09 2007-02-13 Fitel Usa Corp. Polarization insensitive microbend fiber gratings and devices using the same
US7486858B2 (en) * 2007-05-16 2009-02-03 Furukawa Electric North America, Inc. Systems and methods for creating localized refractive index modulations in an optical fiber
DK2655274T3 (da) 2010-12-23 2017-11-27 Prysmian Spa Fremgangsmåde til fremstilling af en præform af glas til optiske fibre
ES2727331T3 (es) 2010-12-23 2019-10-15 Prysmian Spa Fibra óptica monomodo de baja pérdida de macrocurvatura
DE102011114586A1 (de) 2011-09-30 2013-04-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Modenfilter mit Brechzahlmodifikation
US11585976B2 (en) * 2021-04-01 2023-02-21 Saudi Arabian Oil Company Optical fiber with corrugations

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891302A (en) * 1973-09-28 1975-06-24 Western Electric Co Method of filtering modes in optical waveguides
US4877304A (en) * 1987-09-09 1989-10-31 Corning Incorporated Few-mode/single-mode fiber
US5411566A (en) * 1994-06-08 1995-05-02 At&T Corp. Optical fiber spatial mode converter using periodic core deformation
FR2727437B1 (fr) * 1994-11-28 1997-01-31 Rivoallan Loic Procede de fabrication de fibres etirees selon un profil predetermine
GB2299683A (en) * 1995-04-04 1996-10-09 Northern Telecom Ltd Optical notch filter manufacture in a single mode fibre
US5825041A (en) * 1997-03-14 1998-10-20 Loctite Corporation System for optical curing

Also Published As

Publication number Publication date
FR2766584B1 (fr) 1999-10-08
FR2766584A1 (fr) 1999-01-29
US6130974A (en) 2000-10-10
CA2243864C (fr) 2004-10-12

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130723